i have a 2000 dodge durango after you drive the vehicial for about 20 minutes the oil pressure gauge drops to zero then gose back up to 30 psi after a few seconds it will do that several times oil level is at the full mark i removed the oil pressure sensor and installed a manuel oil pressure gauge start the engin up cold and it has good oil pressure 40 psi after it runs about 30 minutes it reads 30 psi rev the engine to 3000 rpms it has 50 psi ran the truck down the road about 10 miles and the oil pressure started to drop and went to zero then came back up to 30 let the truck idle it was reading 15 psi rev the engine up and the oil pressure stayed the same after a few minutes the pressure dropped to zero let it set for a while start it up and i have good oil pressure again is it the oil pump or what else coul it be thks
- posted
14 years ago